1st: Has anyone or does anyone know of a JGC being finished in Matt Black, i mean the entire truck? I think with black wheels it would look pretty intense.

2nd: Slap me if this is a stupid question. Say for example i have 18" tires with whatever width etc, i then choose to change to a larger rime / tire size, this throws out the speed needle, and possibly affects the transmisson etc.

But

Now if i order a Jeep with 18" tire / rims i then choose to upgrade to 20" from the factory when i order a new build, do they adjust the speed needle etc?